Stabilization of disperse metals by nitrogen-containing tensides with different-sized molecules

Abstract

Abstract The samples based on disperse aluminum and copper with similar hydrophobic films on the surface were analyzed and compared. It was established that sorption of water vapor by copper sample decreases by 1,5 times in 145 hours, as a result of sequential layering of ammonium compounds with different-sized hydrocarbon radicals on the nitrogen atom (C1-2 and C17). Sequential layering of ammonium compound with large C17 – radical and organohydride siloxane on copper leads to the decrease of water vapor adsorption by 3 times. The common pattern for Al and Cu samples modification is that the application of two-component layers of structurally similar components favors the formation of samples, stable to oxidizing effect of water.